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Finding the Fourth Proportional to 68,462.94, 94,478.88 and 38,248.20

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Solution

The fourth proportional to 68,462.94, 94,478.88 and 38,248.20 is: 52,782.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,462.94 : 94,478.88 = 38,248.20 : x
  2. Step 2: Convert to fraction form
    68,462.94/94,478.88 = 38,248.20/x
  3. Step 3: Cross multiply
    68,462.94x = 94,478.88 × 38,248.20
  4. Step 4: Simplify right side
    68,462.94x = 3,613,647,098.02
  5. Step 5: Solve for x
    x = 3,613,647,098.02/68,462.94
  6. Step 6: Final answer
    x = 52,782.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.